Firmware error during print  

RE: Firmware error during print

Posted by: @rickie-r

Hi, 

I have a MK3 that's suddenly fails during printing.  It's on the latest firmware.  

Has anyone encountered this error before?

Octoprint detects the error and shows this message

This is what I see on the LCD when the printer stops

Did you send any lower case commands to the printer (m190 instead of M190 or g1 instead of G1)?

RE: Firmware error during print

@karl-herbert

I didn't send any specific commands to the printer.  I created a file in Fusion360 and sliced with PrusaSlicer.  

This was the 5th print of that file that failed with the screen corruption.

RE: Firmware error during print

I contacted support and they requested that I remove the PiZero and try again.

Multiple test prints all fail with "MINTEMP Fixed.  Please restart" errors.

RE: Firmware error during print

@rickie-r

Hello,

I have the same problem.

Printer always fail "Multiple test prints all fail with "MINTEMP Fixed. Please restart" errors."

Display shows " Bed Temp. O C°

Any solution about this problem by support?

RE: Firmware error during print

@thomas-hess

The topic has been discussed many times. Maybe you will find a solution here:

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-hardware-firmware-and-software-help/mintemp-error-4/

or here:

https://help.prusa3d.com/en/article/mintemp-and-mintemp-bed_2169

RE: Firmware error during print

@karl-herbert

Thank you so much.

The bed termistor cable was broken.

I soldered a new one. High quality silicon cable !

Everything OK.

RE: Firmware error during print

@karl-herbert

Thanks for the links.  The thermistor eventually failed (0 degrees at all times).  I've ordered a replacement.

RE: Firmware error during print

@thomas-hess

Hi Thomas, 

Flexible Silicone wire is probably the best solution, what gauge did you use? 

regards Joan